Horseshoe.



G. c. SIEBERT.

HORSESHGE.

APPLICATION FILED 050.14. 1914.

1,149,223. PatentedAug. 10,1915.

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. GEORGE C; SIEBERT, OFOHICAGO, ILLINOIS.

Specification of Letters Patent.

Patented Aue". 10, 1915.

Application filed December 14, 1914. Serial No. 877,145.

To all whom it may concern:

Be it known that I, GEORGE C. SIEBERT, a citizen of the United States,and a resident of the city of Chicago, in the county of Cook and Stateof Illinois, have invented a certain new and useful Improvement inHorseslices; and I do hereby declare that the'following description ofmy said invention, taken in'connection with the accompanying sheet ofdrawing, forms a full, clear, and exact specification, which will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates generally to improvements in horseshoes, and itconsists, essentially, in the novel and peculiar combination of partsand details of construction, as hereinafter iii-st fully set forth anddescribed and then pointed out yinthe claims,

In the drawing already referred to, which serves to illustrate my saidinvention more fully, Figure 1 is a bottom plan of my improved shoe. Bybottom plan, I refer to that face of the shoewhich contacts with theground, or, in other words the tread. Fig. 2 is an elevation of the rearor heel end of the shoe in inverted position. Fig. 3 is a verticalsection in line 8.-?) of Fig. 1. Fig. 4 is a like section in line le-4tof Fig. 1. Fig. 5 is a similar section inline 5-5 of Fig. 1.

Like parts are indicated by similar characters or symbols of referenceink all the figures of the drawing.

My invention has general reference to horseshoes of the bar type, andrelates particularly to that class of bar shoes possessed of soft treadsand connecting bars con-` structed of yyielding material, such lasrubber and the like ;v and, the essence of my in vention resides in newand novel means for anchoring the said yielding bar to the underface ofthe body of the shoe at the rear ends thereof; to prevent the same frombecoming loosened;, and correlated to these means are other meanssurrounding the greater portion of the yielding bar at both endsthereof, to eliminate the spreading tend-- ency of said bar when in use.The yieldable nature of rubber and rubber compounds is well known, andin the majority of shoes of the yielding bar, type, the bar entirelyenvelops the rear ends of the shoe, or is directly vulcanized to theunder or upper face thereof, so that there is no resistance to thespreading tendency of the rubber composition while under the pressure towhich it is 'subjected after the shoe is applied to a horses hoof. Thisconstant pressure soon causes a flattening of the yielding bar and avsegregation of the rubber mass, rendering the bar of no further valuefor the purpose for which it was intended; 'Le a cushionfor the horseshoof at the frog and heel thereof. In the practice of this presentinvention, however, the spreading, flattening, and segregation of therubber bar is eliminated, as the ends of the bar, where practically thetotal weight is sustained, are entirely surrounded by calks dependingfrom the under face of the body of the shoe, so that all pressure uponthe bar results in an intensification of the rubber mass between thesaid calks, rather than a segregation thereof.

To better understand my invention, reference is now made to the drawingin which A indicates the horse shoe as a whole, which is of conventionalconformation, being substantially of U-shape in plan with convergingvrear ends AAQ which ends are generally termed the heel of the slice,while that portion A, located in the center of the U-shapedconfiguration is known as the toe thereof. Y

The base or body of the shoe is indicated at B and is of the aforesaidconformation with its rear converging portions B', B widened for aproper distance forward of the rear ends A and A, which rear ends arerounded as atk 10 and 10a. Around the inner outline of body B, beginningand ter# minating a short distance from the extremities of the widenedportions B and B, there is formed integrally with the body B acontinuous upstanding calk 12; vl; e., depending when the shoe is inuse. And parallel to this calk, outwardly thereof and spaced therefromand forming a channel 12a therebetweemis a like calk 1.3, which calk,however, merges into a heavy toe calk 13ZL at the toe portion A, of theshoe. Said calk 13 turns outwardly abruptly at Hand 14, then continuesalong the outer edges of the widenedv portions B and B, and partiallyaround the rounded rear ends A and A thereof, as clearly seen in Fig. 1.It will thus be observed that the calks 12 and' 13 form confiningreceptacles or spaces 15 and 15a at the widened portions B and B for thereception of the ends 16 and 16aL of a transverse-rubber bar Cconnecting the ends of the shoe, the outer edgesV of said bar ends beingembraced by the calk 13., as clearly seen in Figs.V 1 and 2,v and thevinner edges thereof embraced by the calk 12, the eX- treme ends of whichcalk are, however, bent inwardly aty 17, as seen in Fig. l, so as toform ay positive anchorage. r

Pierced from the body B, inthe portions B and B, and bent in a directiontoward the tread of the shoe, are arcuate prongs 1'?a and 17E-which areanchored in the ends `16 and 16LA of the yielding bar C, these prongsproviding additional 'anchorages, preventive of the loosening of saidbar from the body of the shoe. C is concaved at C between the ends AandA whilel its forward edge thereof is conveXed as at C, the reason forwhich may now be explained as follows:

Horseshoes, when made in quantities in factories devoted to that classof goods are produced in definite sizes as to breadth and length, andare soldt-o jobbers, and thence to the horseshoersf. It isL seldom thatthe VVfeet, of a single animal are alike, and much less,

so. inthe case of a plurality of animals. Therefore means must beprovided whereby a shoe of any particular size may be varied in width tofit a hoof of nominallyv that size. Sometimes the widened portions B andB and the rear ends A and A. must be made narrower in overall width andin other instances Vthe'width mustbe increased. As hereinbeforedescribed, the yielding bar C is irremovably anchored at its respectiveends 16and 16a in the spaces 15 and 15a, and the yielding materialthereof therein confined; therefore, if it be necessary to widen a shoe,pressure by means of a light screw :jack is applied at the points 100and 101 on the interior of the shoe. The yielding material, beingsecurely confinedV at-its ends within the rear portions of the shoe,will .of necessity follow those portions thereof as they are widenedout; wherefore the'necessary stretch of the yielding material of the baris provided for by a flattening of the concave and convex curves C andC. If the requirements are such that the shoe needs to be narrowed, thebody thereof is drawn together by suitable clamps applied at 102 and103, in which casethe surplus material in the yielding lbar findsexpression in an increase in the concavity and conveXity C and C of thebar C, in an evident manner.

The preferred process of afliXing the yielding bar C .to the body B maynow be broadly disclosed as follows: Generally speaking, the body B isfirst placed in a mold having a cavity adapted to receive said n body.Said mold has a top half. containing a cavity of the shape of thevielding bar. Semi-plastic rubber or rubber compound is now placed inthe spaces 15 and 15a by hand The rear edge of the bar x and suiiicientmaterial supplied-to form the complete'bar C. The top half of the moldis then placed inposition; a strip of canvas 104 being placediadjacenttheY body B, and Y the halves of the mold tightly bolted together, afterwhich the mold and its con- Vtents is placed in a suitable vulcanizer tosuitably vulcanize and cure the rubber'. This vdone, the shoe visremoved from the mold, when it will be found that the projections 17aand 17h, and the inwardly curved portion 17 of'calk 12 have beensecurely anchored within the bar C; thatA the said rubber compound isthoroughly secured in` the widened portions B and B, and that noVportion of the rubber compound has passed to the reverse sideof theshoe, this being prevented by the aforementioned canvas strip 104, andit kvmay now be added' that rthis strip is of the'same shape in plan asvthe shoe A. follows the outline of the calk 13.

but a distance spaced therefrom, equal to.

more or less, the width of the offsets 14 and I 14a. It is to beYunderstood, however, that these minute details of construction do notform a part of` my invention and may be varied at will. Through andaround the body B, exteriorly of the calk 13, are produced a series ofcountersunkthrough apertures 106 for the reception of horseshoe nails(not shown) whereby the shoe is fastened to the animals hoof.

Driven into the channel 12a,eXtending from the widened portion B to thewidened portion B, there is a U-shaped, rectangular section of yieldablematerial 110. This material is preferably a combination of a canvas anda rubber compound, vulcanized together in strips in 'a plane at rightangles to the plane of the base or body B. Said material is generallyproduced' in aforesaid Y cross section in long lengths, and the lengthforeach shoe is cut therefrom. Being bendable in nature, the same-isshaped to the contour of the channel 12a and driven thereinto until thesurface thereof is j slightly above the edge of the calks 12 and 13, andsomewhat below the tread surface of the bar C. Y Y n While herein I havedisclosed they preferred mode of practising my'invention, I

reserve the right to make such-changes and ioo alterations therein asmay come within the f province of the skilled mechanic or permittedunder the doctrine of equivalents.

Having thus fully described my invention I claim as new and desire tosecure to myself by Letters Patent of the United States:

l. A horseshoe including a curved body possessed of inner and outerupstanding substantiallycontinuous calks, a filling mathereof, arcuateanchorages projecting from said body, in saidwidened portions of saidbody, and a yielding bar connecting `said rear ends, partially einbracedbyl said calks,

and anchored to said anchorages,'the reary ends of said inner calkhaving their upperV edges bent toward said outer calk and projectinginto said bar.

3. A horseshoe including a curved body possessed of inner and outerupstanding substantially continuous calks, a iilling material therein,the said body and outermost calk being widened apart at the rear endsythereof, arcuate prongs pierced from said body in alineinent to eachother and projecting therefrom in opposite directions in said widenedportions of said body, and a yielding bar connecting said rear ends,partially embraced by said calks, and anchored to said prongs.

Copies of this patent may be obtained for 4. A horseshoe including'acurved bodyV possessedV of inner andl outer upstanding substantiallycontinuous calks, a filling material therein, the said body andoutermost calli being widened apart at the rear ends thereof, arcuateprongs pierced from said body in'v alinenient to each other and pro-`jecting therefrom in opposite directions in said widened portions ofsaidk body, and a `yielding bar connecting said rear ends, partiallyembraced by said callrs, and anchored to said prongs, the rear ends ofsaid inner i calli having their upper edges bent toward said outer calkand projecting into said bar. y 5. A horseshoe including a curved bodyhaving inner and outer upstanding, i substantially continuous calks, therear endsof said inner calli terminating in advance of the rear ends ofsaid outer calli and having fthe upper edges of said rear ends benttoward said outer calli, a filling material be- ,tweenV said calks, thesaid body and outermost calli being widened apart at-the rear endsthereof, alined and oppositely extend-1 rving arcuate prongs in saidwidened portion of lsaid body, and a yielding bar connecting vsaidwidened portions, said prongs and said y bent upper edges of said innercalli projectinginto said bar.`v

In testimony whereof have hereunto -set my hand in theipresence of twosubscribing witnesses.

GEORGE C. SIEBERT.

In the presence of-- W. HARDING, C. S. STACK.

five cents each, byl addressing-the Commissioner of V\Patei1ts,``Washington, D. G.

